| 摘要 |
PROBLEM TO BE SOLVED: To expand an oscillatable frequency band range in a vibration testing device for improving performance of a hybrid vibration test. SOLUTION: This vibration testing device 100 is provided with a waveform generation device 11, a vibrator 15, a test specimen 16, a reaction force measurement means 17, a response measurement means 18, a numerical model computing part 12, which calculates a vibration response of a numerical model to external force by using the numerical model representing other parts of an evaluation target structure and outputs a target response signal, and a vibrator control part 14 controlling the vibrator 15. The vibration testing device 100 is also provided with a stabilization compensator 13 stabilizing a control loop when it is considered that the numerical model computing part 12, the test specimen 16, the vibrator 15, and the vibrator control part 14 constitute the control loop, and a correction signal computing part 19 generating a correction output 49 by using a target response 42 outputted from the numerical model computing part 12 and a test specimen response 47 obtained by vibration of the test specimen 16 as an input. COPYRIGHT: (C)2008,JPO&INPIT
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